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2024 Air Quality Strategy Objective Statistics: All Objectives



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What are the AQS Objectives
Your selected monitoring site » Richmond Upon Thames - Barnes Wetlands
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The table below shows whether pollution levels recorded at the site you have selected remained within the Government's Air Quality Strategy Objectives in 2024 (to date). For further basic statistics click on the button below, or for more precise statistics, use the Statistics Calculator.
Pollutant Objective Is it achieving? Value
PM10 Particulate 40 ug/m3 as an annual mean YES 15
PM10 Particulate 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year YES 0
PM10 (redundant method) 40 ug/m3 as an annual mean YES 16
PM10 (redundant method) 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year YES 1
Ozone 100 ug/m3 as an 8 hour mean, not to be exceeded more than 10 times a year NO 17
Nitrogen Dioxide 200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year YES 0
Nitrogen Dioxide 40 ug/m3 as an annual mean YES 11
* Note that all objectives have been calculated using a method defined in 2013.
* Note that these results cover from the start of the year to now, and are still subject to change until the end of the year. Annual means can only be assessed at the end of the year, and any figures indicate current progress only. Figures for the current year do not take data capture rate into account.
* Note - all results from TEOM PM10 analysers from 2004 onward are now converted to reference equivalence using the volatile correction method. Results using the old 'TEOM*1.3' method are also shown for comparison where relevant. More information.
* Note that this information is calculated twice daily, so may not reflect the latest data.
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